Pipe clamp



May 6,1930. A. HO QERR v 1,157,570

PIPE CLAMP Filed March 16, 1928 L. A. Hoerr Inventor Patented May 1930omen" lsr arss LOUIS A. HOEBR, or s'r. LOUIS, rrrssounr;nssrenon'rownsrnrm nairwnxneurrv MENT COMPANY, on szr. LOUIS, MISSOURI,A coaronarroiv on rarssounr .t

rirE time,

Application filed March raises, seriai 262,253. 1 t

My invention relates to pipe clamps and is particularly adaptedforsecuring a train pipe in the cross bearer of a railway car or othersimilar construct1on..

' The object of my invention is-to provide a simple and efiicientdevicewhich will readily accommodate itself to cross bearer or othersupporting plates having pipe openlngs of g varying diameter; andparticularly to'secure' 1 such. accommodation without the use of boltsand nuts, rivets or othersimilar fastening devlces. 7

In the accompanying drawings, which illustrate one form of pipe clampmade in accordance with my invention, Figure 1 is a top plan view;Flgure 2 1s a side elevation;

Figure 3 is a horizontal section showing the clamp in position; andFigure l'is aniend view. 7

with a pipe opening for the passage of the train pipe 2. The openings insuch cross bearer must be of considerably greater diameter than theexternal diameter of the pipe to allow of the ready insertion andwithdrawal v of the pipe so that a pipe clamping device is necessary tosupport the pipe from the cross bearers. As the pipe openings vary in sze it is necessary that the clamping device be capable of adaptingitself to such variations as occur in the size of the openings. 7

My clamp comprises two pipe engaging members 3 and 4 which, whilesemi-circular in form, are not identical. Each member approximates toone-half of a hollow cylinder the inner face of which is formed on aradius equal to the radius of the outer diam-i eter of the trainpipe. va, v The outer face of each member is concentric with the inner face butis tapered longitudinally to form a wedge/engaging" with the walls ofthepipe; opening and'thus apply clamping. pressure to the lpipe when theclamp is driven in the direction ,of'the arrow in Figure In ordertofacilitate such driving the large ends of the members are extended toform driving flanges 5 and 6 on the members 3 and trespectively;

Formed on the driving flange 5 is a lug? and onlthe flange 6 acooperating lug 8 the locking lug-10 and on the other a cooperating Thecross bearer indicated at 1 is provided two being coanaeaby a rivet 9 toform a hinge securing'the two" parts together. This not only preventsseparation ,of the'parts in transportation but also opposes relativelongitudinal movement of theparts in application so that theynlay bedriveninto posi-' tion in'unison. So that the'hin'ge need not H bear allthedriving strain I form on the I opposite sideof one of the members aninterrecess 11-. The small end of each member is preferably chamfered,as shown at 12', to fa cilitate its insertioninto the pipe opening.

Formed in each of the members ,is a re-. duced portion 13 providing arelatively thin strip of metal which is separated from the member at itssides by slits let to form a retaining finger 15 which, after thedeviceis driven into position, is bent out-radially against the-face ofthe cross bearer to hold the device in clamping position.-

As the retaining finger is formed at the a bottom of the reduced portiona bending spaceisprovided between the finger and the pipe opening sothat the bend in the finger is a gradual curve, as shown at 16 in Figure3. This enables the device, to be repeatedly applied and removed withoutdanger of'breaking off the finger as might occur if a sharp bend wereformed in the finger.

Having fully described my invention, what Iclaim as new and desiretosecure by Letters Patent of the United States is:

1. A device of theclass described comprising two members havingengagement with 85 each other to prevent relative longitudinalmovement'but capable of movement toward and away from eachother, saidmembers be-t ing adapted to surround a pipe-and to be driven into anopeningflin a support, one of said members having an inclined faceadapted to cooperate with the'edge of the opening toiclam'p the pipe,and a finger adapted'to be bent against the'support to hold the devicein varying positions in the opening. l

2; A device of the class describedcomprising twomernbers adaptedt'osurround a pipe and to be driven into an-opening in a support,saidmembers 7 being hinged together to swing in a plane perpend'cular totheaxis .7100

of the pipe, one of said members being provided With an inclined faceadapted to cooperate with the edge ofthe opening to clamp the pipe, anda finger on one of-said members 5 adapted to be bent against the supportto hold the device invarying positions in the opening. p r I 3. A deviceof the classdescribed. comprising two members adapted to surrounda pipeI 10 and to be driven into an opening in a support,

said membersbeing hinged'together to swing in a plane perpendicular tothe axis of the pipe,each ,ofsaid members being provided with a Wedgeface adapted to cooperate with 15 the edge of the opening to clamp thepipe and a finger'on each member adapted to be bent into engegmel t withthe support to e hold the devic ein'varying positions in the opening. yv V testimony whereof, I hereunto aifix my UIS' ATHOERB.

signature, this leth; dag ofiMarch, l928.

riff. Q

gi i l no 15 e

